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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4650) Provide an ability to show task counters for a given task type in Web UI
Date Tue, 11 Sep 2012 11:40:09 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hemanth Yamijala updated MAPREDUCE-4650:
----------------------------------------

    Priority: Minor  (was: Major)
    
> Provide an ability to show task counters for a given task type in Web UI
> ------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4650
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4650
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: webapps
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>            Priority: Minor
>         Attachments: MAPREDUCE-4650.patch
>
>
> In the Web UI for Hadoop (post YARN), there is a view that lists counter values per task
for a given counter (singlejobcounter page). I found this very useful to get a consolidated
view of a specific counter across all tasks, for e.g. in debugging slow tasks. We can navigate
to this view by selecting the specific counter from the Job Counters page.
> This JIRA is to allow for the singlejobcounter page to be prepopulated only with map
task values or reduce task values (if one were interested in only a particular type of task).
> I understand there is a 'search' option on the singlejobcounter page that can be used
to accomplish the same purpose. However, seems a little more usable to provide a direct filter
before getting on to the page.

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